Tractor-plow



Patented Dee. 6, 1921.

3 SHEETS-SHEET l.

. HIST.

TRACTOR Plow.

APPLICATION FILED IUNEZI, 1917.

J. HIST.

TRACTOR PLOW. APPLICATION FILED IuNEzI, 1917.

Patented D60. 6, 1921.

JUHN .firs T,

1. HIST.v

TRACTOR PLOW.

APPLlCAlON FILED )UNE 21. 1917.'

1,399,301, Patented Dec. 6, 1921.

3 SHEETS-SHEET 3.

mmm.

UNITED STATES PATENT crema.

JOHN HIST, OF CLEVELAND, OHIO.

TRACTOR-PLOW.

Application filed J'une 21,

' will enable the gang plow to be lifted quickly from the furrows and locked in its elevated position automatically. In addition, my invention contemplates the disposition of the gang plow with relation to the tractor wheel and frame so that it will be most efficiently operated and positioned, to the end that the tractor wheel and steering wheel will at all times travel upon unplowed ground even at the finish of the dead furrow. Other advantages of secondary nature will appear from a consideration of the accompanying specifications and drawings.

I may briefly describe the apparatus of my invention as comprising a suitable tractor motor associated preferably with a single tractor wheel, mounted within a main frame wherein the gang plow isV provided with floating support and draft connections per* mitting it to reach the desired depth irrespective, in large degree, of the surface contour of the ground. Associated with the tractor wheel is a driving mechanism for the drums which carry the lifting cables for the gang plow', so that these may be automati` cally lifted and thereafter locked in elevated position through the agency of-the motor. Further details may best be explained inV connection with the accompanying drawings, wherein Figure 1 is a view of the tractor plow in side elevation. Fig. 2 is a plan view of said-plow. Fig. 3 is a transverseY sectional view of the mechanism on line 3 3 of Fig. l. Fig. 4 is an enlarged fragmentary view in side elevation illustrating the driving mechanism for lifting the gang plow. Fig. 5 is a second fragmentary view of the same device as viewed from the rear. is a view of the parts shown in Fig. 4 as they appear with the plow supported in its elevated position.

Thoughout'the several figures of the drawings I have employed the same character of reference to indicate similar parts. Referring first to Fig. 2, the relation of the several members of my improved tractor plow may Specicaton of Letters Patent.

Fig. 6 i

Patented Dec. 6, 1921. 1917. Serial No. 176,132.

be more readily grasped. Therein, the main frame at@ isl braced by the diagonal frame Z9, all being connected by the cross frames c, 0,' these frames are formed of angle iron suitably bolted together. The tractor wheel cl is mounted intermediately of the main frame a, a, while the tractor motor e is mounted at the side thereof between the frames 00. Merely the casing thereof, the

radiator e and the supply tank c, are shown, as these features form no part of my invention, and any suitable motor vdevice may be employed. The tractor wheel is provided with an internal gear CZ, and the driving'gear wheel d is mounted upon the shaft of motor e, for propelling the tractor in the well'known manner. Details of the motor mechanism for starting, controlling and throwing in the power are omitted, since these are well known in the art and their eX- planation is deemed unnecessary. At the extreme left and rear of the main frame a there is provided a steering wheel f, which is controlled by the hand wheel f and a chain f, taking over the connected sprocket wheels g, g. The seat g for theoperative is positioned conveniently for use of the` hand wheel f and of the lever h which controls the elevating mechanism for the gang plow. i

In the structure shown, the gang plow comprises three separate steel-beam plows a', z', a',

i. This frame is connected front and back respectively, by the links j, le, both of which are pivoted to the main frame slightly forward of the aXle of the tractor wheel upon brackets j', c; these links being rearwardly pivoted to the plow The gang plow is provided with elevating cables Z, m, the former being carried from vthe drum Z and connected at Z, while the latter runs from the drum m and over a series of intermediate pulley wheels for connection at m, as best shown inFigs. 2 and 5. These drums Z, m are mounted upon a common shortshaft a terminating in a gear wheel Z which is adapted normally to be maintained out of mesh vwith the internal gear d', by means of a heavy spring n. The shaft n is carried upona knee-joint support comprising the pivoted castings 0, 20,' the latterbeing pivoted at p within its bracket p upon the main frame a. The casting 0, as best shown in Figs. and 5, carries the lever 7L, kand is pivoted at the upper end lof the which are supported in a unitary frame z",

beams 2, at j, le.

U-shaped casting p. The latter is provided with internal feet or studs o o, which are adapted alternatively to find a suppporting` wound upon their'respective drums.

The mechanism is shown in the several figures of the' drawings, however, with the exception of Fig. 6, in the relation wherein l5 the lever h has been forced down by the operative in order to mesh the gear a withits co-acting gear fl" at the moment priorv to elevating the gangplow the operation of suchmechanismV being readily understood from the foregoing description of the several -members, which may now be explained. Lever h forces the knee-joint towardthe right with the right hand foot or stud o in'engage'-A ment with the frame, and .the gear wheeled is momentarily rotated in clockwise direction to Vwind the cables Z, m upon their" drums. This `serves immediately to elevate the gang plow, and the riser?n is 'forced into engagement `with the abutment r near the knee-j oint into` its opposite relation' with the left hand foot or stud o now in engagement with the frame, andthe gear wheel d is thrown out ofmesh as shownin Fig.'6. The ratchet and `pawl obviously will retain the gang plow in its elevated positionV until the trip h is actuated to release the ratchet and permit the plow to drop tothe ground in its operative position. y

When said plow is released it will at once form furrows immediately at the rear ofthe tractor wheel seekingfthe normal depth for which the gage wheels 8, s have beenset in the well known manner.` The links y', 7u, respectively connected atthefront andrear of the gang plow frame, afford a` floating tractive moment, asI may termit, for permitting the best and most effective operation of the plow members, 'which nnd their own bottom in a manner long demonstrated to be the best possible working condition. Y This tractive moment is initiated alittle below and at the front of the axle of the tractor wheel, asbest shown in Fig;A 1; the vconnecting links or bars being respectivelyl carried to the front and rear of the gang plow frame.

It will be seen upon'referring 4to Fig. 8

that the tractor wheel is immediately in ad-y Vance of the three furrows which will be formed by the gang plow, while the steering wheel is displaced towardthe right, and inv consequence both of these; wheels will travel uponA unplowed ground. even when finishing sition of" elevation withV the cables Z, `m`

base of lever k, which serves to' throw the said gang plow, a gear'wheel'normallymain? ati the dead furrow-,while permitting the plowing to be carried close to a line fence. The position of these members,'moreover, Y admits of attaching a drag or pulverlzer at V A the rear of the tractor plow so that the ground may be fitted for use as rapidly as it is lowed. Y A Iaving now described the preferred embodiment of my invention, I claim as new and desire to secure by Letters Patent, together with such n'iodifications as may be made by mere skill, the following l. In a plowmechanism, the combination with a main power-imparting wheel of aV gang `plow connected rearwardly thereof,

flexible elevating members associated with said gang plow, a gear wheel normally maintained out of mesh, an actuating gear upon the iirstnamed wheel, andrum mechanism for controlling the flexible elevating ment bers, and a knee-joint'support for the drum andjthe gear wheel adapted4 alternatively to hold it in or out of engagement, whereby the gang plow may be lifted by the Arotation of the first-named wheel, substantially as setV foi-thm i `90 '2. In a plow mechanism, the combination witha main power-imparting wheel of a. gang plow connected rearwardly thereof,` flexible elevating members associated'with 4 tained out of-mesh, an actuating gear upon" the first-named wheel, a drum.mechanism Vfor controlling'thefiexibile elevating mem.

bers, aknee-j oint support for the drum and the gear wheel adapted alternatively to hold it in and.- out of engagement, whereby the gang plow may be lifted by the rotation of: the first-named. `wheel, and an actuating member upon lthe gang plo'wadapted automatically toA throw the gearwheel out' of 105 mesh upon the elevation of said plow, subV stantially asset forth. i 1 f 3. In actuating mechanism as described, the combination with al power-imparting wheel, of driving mechanism adapted to be l actuated 'thereby'for intermittent operation,

a knee-joint `support therefor :adapted to hold the same in alternative positions operatively engaging or disengaging said driving mechanism with or from the wheel," and automatic means for effecting the disen-v gagement Vunder predetermined conditions of operation. ,i 4.' In actuating mechanism Vof the class described, thecombination with al power-imparting wheel, of driving mechanism adapt- A ed to be actuated thereby forjintermittent. operation, an elevating drum, a member controlled thereby, a k1nee-j oint ysupport for the drum adapted operatively tofconnectV and disconnect the drivingmeehanism withor from the'wheel, and `automatic means for effecting the disconnection under predeterj` mined conditions of operation, substantially asset forth. i k"130 5. In actuating mechanism of the class described, the combination with a power-imparting member, of an actuated member, a flexible cable connected thereto, a Winding drum therefor, driving mechanism adapted operatively to connect the drum and the power-imparting member for actuation by the latter, aknee-joint support for said drum and driving mechanism adapted alterna- 10 tively to hold it in or out of operative con- In testimony whereof I do now ailix my 15 signature in the presence of two Witnesses.

JOHN HIST. Witnesses GEo. WYMAN, ALBERT LYNN LAWRENCE. 

